OUI Lookup
0021f3
Si14 SpA
Manufacturer Information
- OUI Prefix
- 0021f3
- Manufacturer
- Si14 SpA
- Address
- Via Tommaseo 77 Padova PD IT 35131
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0021F3
The OUI prefix 0021F3 is assigned to Si14 SpA, based in Via Tommaseo 77 Padova PD IT 35131 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Si14 SpA.